T(n,k)=Number of nXk binary arrays with each element equal to either the sum mod 2 of its horizontal and vertical neighbors or the sum mod 2 of its diagonal and antidiagonal neighbors.
A183517
T(n,k)=Number of nXk binary arrays with each element equal to either the sum mod 2 of its horizontal and vertical neighbors or the sum mod 2 of its diagonal and antidiagonal neighbors.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =3a(4) =4a(5) =3a(6) =4a(7) =11a(8) =11a(9) =4a(10) =6a(11) =24a(12) =37a(13) =24a(14) =6a(15) =9a(16) =56a(17) =138a(18) =138a(19) =56a(20) =9a(21) =13a(22) =121a(23) =427a(24) =736a(25) =427a(26) =121a(27) =13a(28) =19a(29) =272
External references
- oeis: A183517